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238.0 Aluminum vs. S46910 Stainless Steel

238.0 aluminum belongs to the aluminum alloys classification, while S46910 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
200
Elongation at Break, % 1.5
2.2 to 11
Fatigue Strength, MPa 110
250 to 1020
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 210
680 to 2470
Tensile Strength: Yield (Proof), MPa 170
450 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 430
280
Maximum Temperature: Mechanical, °C 170
810
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 510
1420
Specific Heat Capacity, J/kg-K 840
470
Thermal Expansion, µm/m-K 21
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 3.4
7.9
Embodied Carbon, kg CO2/kg material 7.4
4.1
Embodied Energy, MJ/kg 140
55
Embodied Water, L/kg 1040
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
48 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 180
510 to 4780
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
24
Strength to Weight: Axial, points 17
24 to 86
Strength to Weight: Bending, points 23
22 to 51
Thermal Shock Resistance, points 9.1
23 to 84

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0.15 to 0.5
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 9.5 to 10.5
1.5 to 3.5
Iron (Fe), % 1.0 to 1.5
65 to 76
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 3.6 to 4.4
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.5 to 1.2
Zinc (Zn), % 1.0 to 1.5
0